Except for the following questions, ali the remaining questions have been asked in Set I.

**Q. 1. **Using quadratic formula, solve the following quadratic equation for

**Ans. **

**Q. 2. **If is the GCD of the Polynomials , and find the values of a and b.

**Ans.(a=5,b= -4)**

**Q. 6. **The 8 th term of an Arithmetic Progression (A.P.) is -23 and its 12 th term is -39, Find the A.P.

**Ans.(5,1,-3,-7,..) **

**Q. 7. **A loan of Rs. 5,300 is to be returned in two equal annual instalments. If the rate of interest is 12% per annum, compounded annually, calculate the amount of each instalment.

**Ans.(Rs. 3,136)**

**Q. 13. **Determine the ratio in which the point (-6, a) divides the join of A(-3, -1) and B(-8,9). Also find the value of

**Ans.(a=5)**

**Q. 20. **A bag contains 3 red, 5 black and 7 white balls. A ball is drawn from the bag at random. Find the probability that the ball drawn is (i) white (ii) red (iii) not black (iv) red or white

**Ans.(7/15,1/5,2/3,2/3)**

**Q. 23. **The angles of elevation of the top of a tower from two points P and Q at distances of and respectively from the base and in the same straight line with it, are complementary. Prove that the height of the tower is

Maths 2004 Question Papers Class X

CBSE 2004 Question Papers Class X